Trans Oil Cooler/Filter

Hey Group! I'm new here and just got a 92' with 106K on it and have been scanning the posts about transmission oil coolers/filters. I'd like to add one or the other or both and would like some suggestions as what would be the best way to go. I just have the stock radiator cooler and I understand there was a factory program filter kit. Is that worth getting or should I go with an aftermarket setup? My tranny is strong now and I want to keep it that way! Thanks in advance for any suggestions.

Norm